How to JSON in MySQL

How to extract an item from an array in a JSON object in MySQL

To extract an item from an array in MySQL you need to use the -> operator and the [item_number] JSON Path Syntax.

How to JSON in PostgreSQL®

How to remove an item from a JSON array in PostgreSQL®?

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, you can use the - operator to remove an item from an array.

How to JSON in PostgreSQL®

How to create a JSON object from array of key/value pairs in PostgreSQL®?

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, you can use the function json_object (jsonb_object for JSONB) to create a JSON object from an array of key/value pairs.

How to JSON in PostgreSQL®

How to create a JSON object from keys and values arrays in PostgreSQL®?

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, you can use the function json_object (jsonb_object for JSONB) to create a JSON object from two arrays of keys and values.

How to JSON in PostgreSQL®

How to convert an array to a JSON array in PostgreSQL

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, you can use the function array_to_json (array_to_jsonb for JSONB) to create a JSON array from an existing array.

How to JSON in PostgreSQL®

How to build a JSON array from a list of elements in PostgreSQL®

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, you can use the function json_build_array (jsonb_build_array for JSONB) to create a JSON array from a list of elements.

How to JSON in PostgreSQL®

How to parse JSON arrays in PostgreSQL?

PostgreSQL® offers two types of data types to handle JSON data, JSON and JSONB, and provides several different ways to parse arrays from a JSON document: